{
 "id": "WPSEC-2026-1065",
 "url": "https://wpsec.com/vuln/WPSEC-2026-1065/",
 "json_url": "https://wpsec.com/vuln/WPSEC-2026-1065/advisory.json",
 "markdown_url": "https://wpsec.com/vuln/WPSEC-2026-1065/index.md",
 "title": "Anti-Spam by CleanTalk <= 6.89.1 - Unauthenticated Reflected Cross-Site Scripting via 'item_meta' Parameter",
 "description": "The Spam Protection for Forms & Comments. Anti-Spam by CleanTalk plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'item_meta' parameter in the Formidable Forms integration in all versions up to, and including, 6.89.1 due to an unvalidated array key from the request being used as a key in the blocking response that is echoed without HTML-safe encoding. This makes it possible for unauthenticated attackers to inject arbitrary web scripts that execute if they can trick a user into submitting a crafted request, on sites using Formidable Forms.",
 "plugin": {
  "slug": "cleantalk-spam-protect",
  "name": "Anti-Spam by CleanTalk",
  "full_name": "Spam Protection for Forms & Comments. Anti-Spam by CleanTalk",
  "wordpress_org": "https://wordpress.org/plugins/cleantalk-spam-protect/",
  "advisories_url": "https://wpsec.com/vuln/plugin/cleantalk-spam-protect/",
  "attacksurface": "https://attacksurface.wpsec.com/plugin/cleantalk-spam-protect"
 },
 "type": "XSS",
 "cwe": [
  "CWE-79"
 ],
 "cve": [],
 "cvss": {
  "version": "3.1",
  "score": 6.1,
  "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
  "severity": "Medium"
 },
 "affected": {
  "ranges": [
   {
    "from": null,
    "from_inclusive": true,
    "to": "6.90",
    "to_inclusive": false
   }
  ],
  "text": [
   "all versions before 6.90"
  ]
 },
 "introduced_in": null,
 "fixed_in": "6.90",
 "remediation": "Update to 6.90 or later.",
 "fix_released": "2026-10-15T08:40:50+00:00",
 "published": "2026-10-16T11:46:25+00:00",
 "updated": "2026-10-16T10:56:01.683582+00:00",
 "also_published_as": null,
 "references": [
  "https://wpsec.com/vuln/WPSEC-2026-1065/",
  "https://plugins.svn.wordpress.org/cleantalk-spam-protect/tags/6.90/",
  "https://wordpress.org/plugins/cleantalk-spam-protect/"
 ],
 "attacksurface_url": "https://attacksurface.wpsec.com/plugin/cleantalk-spam-protect",
 "source": "WPSec",
 "license": {
  "name": "CC BY 4.0",
  "url": "https://creativecommons.org/licenses/by/4.0/"
 },
 "usage": {
  "plugin": "High",
  "affected_versions": "High",
  "as_of": "2026-10-16"
 }
}